Castelldefels, Catalonia, Spain, located at latitude 41.2568 and longitude 1.9387, offers a promising location for solar energy generation throughout the year. The town's position in the Northern Temperate Zone provides a good balance of sunlight across the seasons, making it suitable for solar PV installations.

Seasonal Solar Output

The solar energy potential in Castelldefels varies significantly across the seasons. Summer stands out as the most productive period, with an average daily output of 7.34 kWh per kW of installed solar capacity. Spring follows as the second most productive season, generating 5.81 kWh per day. Autumn sees a decrease in production to 3.75 kWh per day, while winter experiences the lowest output at 2.42 kWh per day. This seasonal variation indicates that Castelldefels is particularly well-suited for solar energy generation during the warmer months, from late spring through early autumn. However, the location still maintains a reasonable level of production even during the cooler seasons, making year-round solar energy generation viable.

Optimal Panel Placement

To maximize the total year-round production from solar PV in Castelldefels, Catalonia, fixed panels should be tilted at an angle of 35 degrees facing South. This optimal angle takes into account the town's latitude and the sun's position throughout the year, ensuring the best possible exposure to sunlight across all seasons.

Environmental and Weather Considerations

While Castelldefels generally offers favorable conditions for solar energy production, there are a few factors to consider: 1. Coastal location: Being close to the Mediterranean Sea, salt air corrosion could potentially affect solar panel efficiency over time. 2. Occasional dust storms: The region may experience dust storms from the Sahara, which could temporarily reduce panel efficiency. To mitigate these potential issues, the following preventative measures can be taken: - Use corrosion-resistant materials for panel frames and mounting hardware. - Apply protective coatings to panels to guard against salt air and dust accumulation. - Implement a regular cleaning schedule to remove salt and dust deposits. - Install panels at a slight angle to allow for natural cleaning by rainwater. By addressing these environmental factors during installation and maintenance, solar energy systems in Castelldefels can maintain high levels of efficiency and productivity throughout the year.

Note: The Northern Temperate Zone extends from 35° latitude North up to 66.5° latitude.

So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 361 locations across Spain. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Spain by location

Solar output per kW of installed solar PV by season in Castelldefels

Seasonal solar PV output for Latitude: 41.2568, Longitude: 1.9387 (Castelldefels, Spain), based on our analysis of 8760 hourly intervals of solar and meteorological data (one whole year) retrieved for that set of coordinates/location from NASA POWER (The Prediction of Worldwide Energy Resources) API:

 

Ideally tilt fixed solar panels 35° South in Castelldefels, Spain

To maximize your solar PV system's energy output in Castelldefels, Spain (Lat/Long 41.2568, 1.9387) throughout the year, you should tilt your panels at an angle of 35° South for fixed panel installations.

As the Earth revolves around the Sun each year, the maximum angle of elevation of the Sun varies by +/- 23.45 degrees from its equinox elevation angle for a particular latitude. Finding the exact optimal angle to maximise solar PV production throughout the year can be challenging, but with careful consideration of historical solar energy and meteorological data for a certain location, it can be done precisely.

We use our own calculation, which incorporates NASA solar and meteorological data for the exact Lat/Long coordinates, to determine the ideal tilt angle of a solar panel that will yield maximum annual solar output. We calculate the optimal angle for each day of the year, taking into account its contribution to the yearly total PV potential at that specific location.

Seasonally adjusted solar panel tilt angles for Castelldefels, Spain

If you can adjust the tilt angle of your solar PV panels, please refer to the seasonal tilt angles below for optimal solar energy production in Castelldefels, Spain. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 35° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
25° South in Summer	46° South in Autumn	56° South in Winter	34° South in Spring

Our recommendations take into account more than just latitude and Earth's position in its elliptical orbit around the Sun. We also incorporate historical solar and meteorological data from NASA's Prediction of Worldwide Energy Resources (POWER) API to assign a weight to each ideal angle for each day based on its historical contribution to overall solar PV potential during a specific season.

This approach allows us to provide much more accurate recommendations than relying solely on latitude, as it considers unique weather conditions in different locations sharing the same latitude worldwide.

Calculate solar panel row spacing in Castelldefels, Spain

We've added a feature to calculate minimum solar panel row spacing by location. Enter your panel size and orientation below to get the minimum spacing in Castelldefels, Spain.

Our calculation method

1. Solar Position:
   We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
2. Shadow Projection:
   We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
3. Minimum Spacing:
   We add the shadow length to the horizontal space occupied by tilted panels.

This approach ensures maximum space efficiency while avoiding shading during critical times, as the Winter solstice represents the worst-case scenario for shadow length.

Topography for solar PV around Castelldefels, Spain

Castelldefels, a coastal town in Catalonia, Spain, is situated in an area with diverse topography. The town itself is nestled between the Mediterranean Sea to the southeast and the Garraf Massif to the northwest. This unique location creates a varied landscape that includes sandy beaches, flat coastal plains, and rugged hills. The coastline of Castelldefels features long stretches of golden sandy beaches, which gradually rise to meet the urban areas of the town. Moving inland, the terrain becomes increasingly flat, forming a coastal plain that extends for several kilometers. This area is largely urbanized, with residential and commercial developments dominating the landscape. As one travels northwest from the town center, the topography begins to change dramatically. The land starts to rise, forming the foothills of the Garraf Massif. This mountainous area is characterized by steep slopes, rocky outcrops, and dense Mediterranean vegetation. The Garraf Natural Park, which encompasses much of this terrain, features a rugged karst landscape with numerous caves and sinkholes.

Potential Areas for Large-Scale Solar PV

When considering suitable locations for large-scale solar photovoltaic (PV) installations near Castelldefels, several factors come into play. The ideal areas would have ample sunlight exposure, relatively flat terrain, and minimal environmental impact. The coastal plain to the southwest of Castelldefels, extending towards the neighboring town of Gavà, presents a promising option for solar PV development. This area features expansive, flat agricultural lands that receive abundant sunshine throughout the year. The open nature of this terrain would minimize shading issues and allow for efficient solar panel placement. Another potential location lies to the west of Castelldefels, in the area between the town and the Garraf Massif. This region consists of gently rolling hills and plateaus, which could accommodate large solar arrays while benefiting from excellent sun exposure. However, care would need to be taken to avoid areas of ecological importance within the Garraf Natural Park. The industrial zones on the outskirts of Castelldefels and neighboring municipalities might also be suitable for solar PV installations. These areas often have large, flat rooftops that could be utilized for solar panels, minimizing the need for additional land use. It's important to note that any large-scale solar PV project would require careful environmental assessment and compliance with local regulations. The proximity to urban areas and the Garraf Natural Park means that visual impact and ecological considerations would need to be thoroughly addressed in the planning stages.

Spain solar PV Stats as a country

Spain ranks 10th in the world for cumulative solar PV capacity, with 15,952 total MW's of solar PV installed. This means that 9.00% of Spain's total energy as a country comes from solar PV (that's 6th in the world). Each year Spain is generating 237 Watts from solar PV per capita (Spain ranks 20th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Spain?

Yes, there are several incentives for businesses wanting to install solar energy in Spain. These include the following:



1. The Spanish government offers a feed-in tariff (FIT) for businesses that install solar energy systems. This FIT guarantees a fixed price per kWh of electricity generated by the system over a period of 20 years.



2. Businesses can also benefit from tax deductions and other financial incentives when installing solar energy systems in Spain.



3. Companies may be eligible for grants or subsidies from regional governments or local authorities to help cover the cost of installation and maintenance of their solar energy systems.



4. Businesses may also be able to take advantage of net metering, which allows them to sell excess electricity generated by their solar energy system back into the grid at market prices, thus reducing their overall electricity costs even further.

Do you have more up to date information than this on incentives towards solar PV projects in Spain? Please reach out to us and help us keep this information current. Thanks!

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Compare this location to others worldwide for solar PV potential

The solar PV analyses available on our website, including this one, are offered as a free service to the global community. Our aim is to provide education and aid informed decision-making regarding solar PV installations.

However, please note that these analyses are general guidance and may not meet specific project requirements. For in-depth, tailored forecasts and analysis crucial for feasibility studies or when pursuing maximum ROI from your solar projects, feel free to contact us; we offer comprehensive consulting services expressly for this purpose.

Helping you assess viability of solar PV for your site

Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide

Enhance your solar panel's performance with our in-depth guide. Determine the best tilt angle using hard data, debunk common misunderstandings, and gain insight into how your specific location affects solar energy production.